Title :
Nanometer-Scale
RRAM
Author :
Zhiping Zhang ; Yi Wu ; Wong, H.-S Philip ; Wong, S. Simon
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., Stanford, CA, USA
Abstract :
HfOx-based resistive random access memory with an active area down to few nanometers in diameter is fabricated and characterized. Scaling trends for forming and switching characteristics are presented. For the smallest device with an active area of few nanometers in diameter, ac switching endurance of 108 cycles with more than 100 × resistance window is demonstrated. In addition, multiple resistance states are shown to be stable after 105 read cycles and 105 s baking at 150 °C.
Keywords :
hafnium compounds; random-access storage; AC switching endurance; HfO; forming characteristics; nanometerscale halfnium oxide RRAM; resistance state; resistance window; resistive random access memory; switching characteristics; Bipolar switching; Hafnium oxide $({rm HfO}_{x})$; forming process; resistive random access memory (RRAM);
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2013.2265404